Meets STANAG 4296 requirements.
2.3 mm thick polycarbonate lenses provide protection against ballistic and mechanical fragments with a typical mass of 325 mg and a velocity (215 + 5) m/s, with an epicentre of an explosion at a distance of 30 m.

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A damaging fragment is modelled by A3/6723/6 imitator due to STANAG 2920. Withstand the impact of 22 mm diameter steel ball with 43 g weight, at a speed of 5.1 m/s. Resistant to the impact of 6 mm diameter steel ball with 0.86 g weight, at a speed of 120 + 30 m/s.